42
Symbols Glossary
Symbol
Definition
Symbol
Definition
Power button
X
Headband size indicator. Will appear as M
for medium or L for large.
Consult instructions for use.
Class II (Double Insulated)
Bluetooth symbol
Type BF Applied Part
USB connector
Detachable battery charger
DC Power
AC Power
IP22
Drip Proof Equipment
Protection against ingress of solid foreign
objects
≥
12.5 mm diameter.
Protection against ingress of water with
harmful effects dripping
(15° tilted).
Refer to http://www.symbols.philips.com for more information.
